JP2023108172A - Image formation apparatus - Google Patents

Abstract

To enable reduction in an amount of sheet media discarded even when a transport jam occurs.SOLUTION: A printer includes: a roll body storage portion capable of storing a roll body; an apparatus main body that is mounted with a transport portion for transporting a roll sheet, and a head portion; an electrically-driven cutting portion capable of cutting the roll sheet; a cover capable of taking a closed position where a transport path of the roll sheet downstream of the cutting portion in a transport direction is formed between the cover and the apparatus main body, and an open position where the transport path can be exposed to an outside; a paper sensor that detects a transport jam of the roll sheet; a notification unit; and a control unit. The control unit causes, when detecting the transport jam, the notification unit to perform a notification operation that prompts a user-cutting in which a user cuts, at any position in an exposed part of the transport path, the roll sheet where the transport jam has occurred.SELECTED DRAWING: Figure 4

Description

The present invention relates to an image forming apparatus having a cutting section capable of cutting a sheet medium.

Japanese Patent Application Laid-Open No. 2002-200000 discloses a tray that can accommodate roll paper (roll body), a transport unit that transports paper (sheet medium) unwound from the roll paper, and an image formed on the paper transported by the transport unit. A printer is described that includes a head (image forming section) capable of cutting the paper transported by the transport section and a cutting section capable of cutting the paper.

JP 2021-155198 A

In a printer capable of conveying paper unwound from a roll paper and forming an image on the paper, as described in Patent Document 1, when the paper is being conveyed by the conveying unit, for example, near the head In the event of a paper jam, the following actions are considered to be performed: That is, when a paper jam occurs, first, the jammed paper is automatically cut at the cutting section in order to remove the jammed paper. After that, it is conceivable that a notification operation is executed to prompt the user to remove the cut paper.

However, when the head and the cutting section are relatively separated along the paper transport direction, as in the printer described in Japanese Patent Application Laid-Open No. 2002-200010, the paper is cut even though the paper jam occurs in the vicinity of the head. If the cutting section automatically cuts the paper, it becomes necessary to discard the paper from the paper jam occurrence point to the cutting section.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an image forming apparatus capable of reducing the amount of sheet-like media to be discarded even when a jam occurs.

The image forming apparatus of the present invention includes a storage section that can store a roll body in which a sheet medium is wound in a roll shape, a transport section that transports the sheet medium unwound from the roll body in a transport direction, and a sheet. an image forming unit for forming an image on a sheet-like medium; an electric cutting unit capable of cutting the sheet-like medium conveyed by the conveying unit in a direction intersecting the conveying direction; a closed position that forms a transport path for a sheet-like medium located downstream of the part in the transport direction with the apparatus main body; and a cover that can take a position, and a sheet-like medium conveyed to the conveying path by the conveying unit can be prevented from being jammed by the conveying path rather than the exposed portion of the conveying path that is exposed to the outside by the cover taking the open position. It includes a detection unit that detects downstream in the conveying direction, a notification unit that can perform a notification operation to notify the user, and a control unit. Then, when the detection unit detects the jam of the sheet-like medium, the control unit allows the user to cut the jammed sheet-like medium at an arbitrary position in the exposed portion of the conveying path. The notification unit is caused to perform the notification operation including prompting for disconnection.

According to the image forming apparatus of the present invention, when a transport jam occurs in the transport path, the user moves the cover from the closed position to the open position based on the notification operation to move the sheet medium to any part of the exposed portion of the transport path. It is possible to cut at the position of Therefore, the sheet-like medium can be cut at a downstream position in the conveying direction from the cutting position where the sheet-like medium is cut by the cutting section. As a result, it is possible to reduce the amount of sheet-like media to be discarded even if a transport jam occurs.

1 is a side view showing a schematic configuration of a printer according to an embodiment of the invention; FIG. FIG. 2 is a side view of a main part showing a situation when a cover of the printer shown in FIG. 1 is positioned at an open position; 2 is a block diagram of a control unit of the printer shown in FIG. 1; FIG. 4 is a flow chart showing an example of a processing procedure executed when the printer shown in FIG. 1 receives a roll image forming signal; 2 shows the content of notification processing executed by the printer shown in FIG. 1, where (a) is a diagram showing the content displayed in the first notification processing, and (b) is the content displayed in the second notification processing. and (c) is a diagram showing the contents displayed in the third notification process.

A printer 100 according to a preferred embodiment of the present invention will be described below with reference to the drawings. In the following description, the up-down direction and the front-back direction are defined based on the state in which the printer 100 is installed for use (the state in FIG. 1), and the left-right direction (perpendicular to the plane of FIG. 1) when the printer 100 is viewed from the front. direction) is defined.

As shown in FIG. 1, the printer 100 includes a housing 100a, a feeding cassette 1, a conveying section 3, a cutting section 4, a head section (an "image forming section" of the present invention) 5, a discharge tray 6, a control section 8, It has a notification unit 9 (see FIG. 3), a paper sensor 10, a cover 90, and the like. In the following description, the housing 100a, the feeding cassette 1, the conveying unit 3, the head unit 5, the cutting unit 4, the discharge tray 6, the control unit 8, the notification unit 9, and the paper sensor 10 accommodated in the housing 100a. is called an apparatus main body 101 . It should be noted that the apparatus main body 101 includes at least the housing 100a, the transport section 3, and the head section 5, the feed cassette 1, the cutting section 4, the discharge tray 6, the control section 8, the notification section 9, and the paper sensor 10. etc. may not be included.

The feed cassette 1 is arranged below the head section 5 in the housing 100a. Further, the feed cassette 1 selectively accommodates either the roll body R or the cut paper Kp so that either the roll body R or the cut paper Kp can be selectively transported. . As shown in FIG. 1, the feed cassette 1 includes a tray 11, a roll accommodation unit 20 capable of accommodating a roll R, and a cut paper accommodation unit 13 capable of accommodating a plurality of stacked cut papers Kp. have.

As shown in FIG. 1, the roll body R is obtained by winding a long roll paper (“sheet medium” of the present invention) Rp around the outer peripheral surface of a cylindrical core member Rc. The cut paper Kp is a paper shorter than the long roll paper Rp forming the roll body R, and is, for example, A4 size or B5 size paper. In the following description, when the roll paper Rp unwound from the roll body R and the cut paper Kp are not distinguished, they may be referred to as "paper P".

As shown in FIG. 1, the tray 11 has a bottom wall 11a and four side walls 11b (in FIG. 1, provided at the front and rear edges of the bottom wall 11a). (only two side walls 11b are shown). The tray 11 can be inserted into and removed from the housing 100a along the front-rear direction.

As shown in FIG. 1, the roll storage section (the "storage section" of the present invention) 20 is arranged on the front side of the bottom wall 11a of the tray 11, and supports the outer peripheral surface of the lower portion of the roll body R. The roll body R is rotatably supported. The roll body R is housed in the roll body housing section 20 in a state in which the rotation axis (the central axis of the core member Rc) extends in the left-right direction (the width direction of the roll paper Rp).

The roll housing portion 20 has a recess 21 for housing the roll R, as shown in FIG. Two rollers 22 and 23 are provided at the bottom of the recess 21 . The two rollers 22 and 23 are each rotatable around a rotation shaft extending in the left-right direction. When the roll body R is accommodated in the recess 21, the outer peripheral surface of the lower portion thereof is supported by the two rollers 22 and 23. As shown in FIG.

As shown in FIG. 1, the roll housing portion 20 has a hole 25 communicating with the recess 21 and extending in the vertical direction, and a groove 26 communicating with the hole 25 and extending in the front-rear direction. Both the holes 25 and the grooves 26 are open on the bottom surface of the roll body accommodating section 20 . Also, the holes 25 and the grooves 26 are formed to extend in the left-right direction. More specifically, it is formed longer than the width of the roll paper Rp in the horizontal direction. The roll paper Rp unwound from the roll body R passes through the holes 25 and the grooves 26 and is transported toward the head section 5 .

As shown in FIG. 1, the cut paper storage section 13 is located behind the roll storage section 20 (that is, downstream along the transport direction). The cut paper storage section 13 stores the cut paper Kp in such a posture that the longitudinal direction of the cut paper Kp is aligned with the left-right direction, and the width direction thereof is aligned with the front-rear direction.

As shown in FIG. 1, the cover 90 is arranged in the opening 14 provided on the rear surface of the housing 100a. The cover 90 has a cover body 91 and a guide member 92 . A lower end portion of the cover body 91 is rotatably supported by a shaft 91a supported by the housing 100a. The shaft 91a extends in the left-right direction. The cover body 91 can take a closed position (the position shown in FIG. 1) and an open position (the position shown in FIG. 2) by rotating about the shaft 91a.

As shown in FIG. 1, the guide member 92 is arranged outside the guide member 18 provided in the housing 100a and adjacent to the pair of conveying rollers 43, and is arranged between the guide member 18 and the guide member 18 from below to the front. constitutes a curved path (a part of the "conveyance path" of the present invention) W1. Further, the guide member 92 is fixed to the front facing surface of the cover body 91 in the closed position. As a result, the cover 90 can expose the path W including the curved path W1 to the outside by moving the cover body 91 from the closed position to the open position, as shown in FIG. The path W referred to here is a path between the cutting section 4 and the head section 5 in the transport path along which the paper P is transported by the transport section 3 (the transport path from the feed cassette 1 to the discharge tray 6). , guide members 18 and 92 and a guide member (not shown) provided in the housing 100a.

The conveying section 3 has a feeding section 41, three conveying roller pairs 42 to 44, and a conveying motor 45M (see FIG. 3). The feeding unit 41 feeds out either the roll body R or the cut paper Kp accommodated in the feeding cassette 1 rearward from the feeding cassette 1 .

The feeding section 41 is arranged above the feeding cassette 1, and has a feeding roller 41a, an arm 41b, and a feeding motor 41M (see FIG. 3). The feeding roller 41a is pivotally supported at the tip of the arm 41b. The arm 41b is rotatably supported by the support shaft 41c. The arm 41b is biased by a spring or the like in a direction in which the feeding roller 41a contacts the bottom wall 11a of the tray 11. As shown in FIG. Further, the arm 41b is configured to be retractable upward when the feeding cassette 1 is attached or detached. The feeding roller 41a rotates by receiving a driving force from the feeding motor 41M. When the feeding motor 41M is driven under the control of the control section 8, the feeding roller 41a rotates and the paper P accommodated in the tray 11 is fed backward.

The three transport roller pairs 42 to 44 transport the paper P fed by the feeding unit 41 within the housing 100a along the transport direction perpendicular to the left-right direction. The three transport roller pairs 42 to 44 are arranged in this order from the upstream side in the transport direction. The conveying roller pair 42 conveys along the path W the sheet P sent out from the feeding cassette 1 by the feeding section 41 . The transport roller pair 43 receives the paper P transported by the transport roller pair 42 and sends it to the head section 5 . The transport roller pair 44 receives and discharges the paper P transported by the transport roller pair 43 . The paper P conveyed by the pair of conveying rollers 43 and 44 is sent forward.

Each of the transport roller pairs 42 to 44 is composed of a driving roller that rotates when a driving force is transmitted from the transport motor 45M and a driven roller that rotates with the driving roller. When the transport motor 45M is driven under the control of the controller 8, the driving rollers and the driven rollers of the transport roller pairs 42 to 44 rotate while nipping the paper P, thereby transporting the paper P in the transport direction.

The cutting part 4 is arranged in the housing 100a. The cutting section 4 is located between the rear end of the tray 11 and the conveying roller pair 42 . The cutting unit 4 includes a horizontally elongated fixed blade 4a and a disc-shaped rotary blade 4b that can move in the horizontal direction while contacting the fixed blade 4a. The rotary blade 4b is reciprocated in the left-right direction by driving a cutting motor 4M (see FIG. 3) controlled by the controller 8. As shown in FIG. As the rotary blade 4b moves in one of the left and right directions, it receives a rotational moment from the roll paper Rp and the fixed blade 4a, and is driven to rotate. The roll paper Rp unwound and transported from the roll body R is cut in the width direction (horizontal direction: “cross direction” in the present invention) by the cutting section 4 . As a result, the trailing edge of the roll paper Rp sent to the discharge tray 6 is formed.

The head portion 5 is arranged between the transport roller pair 43 and the transport roller pair 44 . The head section 5 includes a head 5a having a nozzle surface on which a plurality of nozzles (not shown) are formed, and a frame 5b supporting the head 5a with the nozzle surface facing downward. The head 5a has a driver IC 5c (see FIG. 3). When the driver IC 5c is driven under the control of the control unit 8, ink supplied from an ink cartridge (not shown) is ejected from nozzles, and the transport roller An image is formed on the paper P conveyed by the pair 43 . The paper P on which the image is formed is transported forward (to the left in FIG. 1) by the transport roller pair 44 . The head 5a may be either a line type head that ejects ink from nozzles in a fixed position or a serial type head that ejects ink from nozzles while moving in the horizontal direction.

The discharge tray 6 constitutes the upper front side wall of the housing 100a and can be opened and closed with respect to the housing 100a. The paper P on which an image is formed by the head unit 5 is conveyed forward by the conveying unit 3 and received by the discharge tray 6 in the open state. As a result, the paper P is ejected from the printer 100 (inside the housing 100a).

The paper sensor (the “detection unit” of the present invention) 10 is composed of an optical sensor having a light emitting unit and a light receiving unit, but any sensor that can detect the paper P may be used. 1 and 2, the paper sensor 10 is supported by the frame 5b upstream of the head 5a in the transport direction. Further, the paper sensor 10 is arranged downstream of the path W in the transport direction. The paper sensor 10 is arranged so as to be able to detect the paper P conveyed by the conveying roller pair 43. When the paper P is detected, the paper sensor 10 sends a signal indicating that the paper P has been conveyed to the control unit 8. Output.

For example, if the paper sensor 10 does not detect the paper P even after a predetermined time has passed since the paper P started to be transported during printing, the paper P jams, that is, a transport jam has occurred. In such a case, the control unit 8 detects the paper jam based on the signal received from the paper sensor 10 after a predetermined time has elapsed from the start of transportation. As described above, in the present embodiment, the paper sensor 10 and the control unit 8 function as a detection unit that detects a paper jam.

As a modification, a sensor capable of detecting contact of the sheet P conveyed by the conveying unit 3 with the side wall of the frame 5b on the upstream side in the conveying direction is provided, and the contact of the sheet P is detected by the sensor. A transport jam may be detected directly. As described above, the detection unit of the present invention may have any structure as long as it is capable of detecting jamming in conveyance.

The notification unit 9 is for performing a notification operation of notifying the user of information. The notification unit 9 is, for example, a display provided in the printer 100, and performs a notification operation to the user by displaying information to be notified to the user.

Next, the control unit 8 that controls the entire printer 100 will be described with reference to FIG. The control unit 8 includes a CPU (Central Processing Unit) 81, a ROM (Read Only Memory) 82, a RAM (Random Access Memory) 83, an ASIC (Application Specific Integrated Circuit) 84, a flash memory 85, etc., which are connected to each other by a bus. include. These components cooperate to control the operations of the driver IC 5c, the feeding motor 41M, the conveying motor 45M, the cutting motor 4M, the notification unit 9, and the like. A signal indicating that the paper P has been conveyed is input to the control unit 8 from the paper sensor 10 .

The printer 100 also has an input section 7 in addition to the configuration described above. The input unit 7 is, for example, a button provided on the housing 100a of the printer 100, a touch panel provided on the display, or the like. A user can input a signal to the control unit 8 by operating the input unit 7 . Further, the input unit 7 can input a signal for instructing setting and canceling of an automatic cutting mode in which automatic cutting by the cutting unit 4 is always executed when a jam occurs in conveyance. When the automatic disconnection mode is set, the flash memory 85 stores an automatic disconnection flag indicating that the mode is set. On the other hand, when the automatic disconnection mode is canceled, the flash memory 85 does not store the automatic disconnection flag.

In the control unit 8, only the CPU 81 may perform various processes, only the ASIC 84 may perform various processes, or the CPU 81 and the ASIC 84 may cooperate to perform various processes. can be anything. In addition, the control unit 8 may be performed by one CPU 81 alone, or may be performed by a plurality of CPUs 81 sharing the processing. Further, the control unit 8 may be one in which one ASIC 84 performs processing alone, or may be one in which a plurality of ASICs 84 share the processing.

<Controlling roll paper printing>
Next, the control by the control unit 8 at the time of roll paper printing for forming an image on the roll paper Rp will be described. In the printer 100, when a roll image forming signal for executing roll paper printing is received, the control section 8 performs processing according to the flow of FIG. The roll image forming signal is a signal that instructs the printer 100 to form an image on the roll paper Rp, and is transmitted from an external device or the like to the control section 8 .

To explain the flow of FIG. 4 in more detail, the control section 8 first determines whether or not a roll image forming signal has been received (S1). If the roll image forming signal has not been received (S1: NO), S1 is repeated. When the roll image forming signal is received (S1: YES), the controller 8 starts roll paper printing (S2). That is, the control unit 8 causes the transport unit 3 to transport the roll paper Rp from the feed cassette 1 in the transport direction. Then, an image is formed by the head 5 a on the roll paper Rp transported by the transport unit 3 .

Next, the control unit 8 determines whether or not a jam has occurred (S3). That is, it is determined whether or not a signal for detecting the roll paper Rp has been received from the paper sensor 10 after a predetermined time has elapsed since the transport of the roll paper Rp was started. When the controller 8 receives the signal for detecting the roll paper Rp and determines that there is no transport jam (S3: NO), the process proceeds to S4.

In S4, the control unit 8 determines whether or not the roll paper Rp has been transported to the planned cutting position by the cutting unit 4 (S4). The transport amount of the roll paper Rp is derived based on a signal from an encoder (not shown) provided in the transport unit 3, and it is determined whether or not the roll paper Rp has been transported to the planned cutting position by the cutting unit 4. If the sheet is not transported to the planned cutting position (S4: NO), the process returns to S3. The planned cutting position is the position on the transport path of the roll paper Rp when the planned trailing position of the roll paper Rp where the entire image based on the roll image formation signal can be formed is located in the cutting section 4 .

On the other hand, if the roll paper Rp has been transported to the planned cutting position (S4: YES), the controller 8 proceeds to S5. Next, in S<b>5 , the control unit 8 drives the cutting motor 4</b>M, cuts the roll paper Rp with the cutting unit 4 , and discharges the roll paper Rp to the discharge tray 6 . Image formation on the roll paper Rp may be performed within the range up to the trailing edge after the roll paper Rp is cut. In this way, the image formation on the roll paper Rp is completed, and the flow ends.

If the control unit 8 determines in S3 that the signal for detecting the roll paper Rp has not been received and that a transport jam has occurred (S3: YES), it stops roll paper printing (S6). Next, the control unit 8 determines whether or not the automatic disconnection mode is set (S7). That is, the control unit 8 determines whether the automatic disconnection mode has been set in advance by the user based on whether the automatic disconnection flag is stored in the flash memory 85 .

If the automatic disconnection mode is set (S7: YES), the process proceeds to S10, which will be described later. On the other hand, if the automatic disconnection mode is not set (S7: NO), the control unit 8 executes the first notification process (S8). In the first notification process, the control unit 8 causes the notification unit 9 to transmit the content shown in FIG. let it run.

Next, the control unit 8 determines whether or not the user has selected automatic disconnection (S9). When the user selects "yes" in FIG. 5(a) through the input unit 7 and inputs an instruction to execute automatic cutting (S9: YES), the control unit 8 drives the cutting motor 4M. Then, the cutting unit 4 cuts the roll paper Rp (S10).

Next, the control unit 8 executes a second notification process (S11). In the second notification process, the control unit 8 causes the notification unit 9 to perform the content shown in FIG. 5B, that is, the operation of notifying that the removal of the cut roll paper Rp is urged as the notification operation.

Here, a procedure for removing the roll paper Rp cut by the user will be described. First, as shown in FIG. 2, the cover 90 is moved from the closed position to the open position. Thereby, the path W is exposed to the outside. After that, the cut roll paper Rp (the part of the roll paper causing the transport jam) is removed from the path W. Then, the cover 90 is moved from the open position to the closed position.

On the other hand, in S9, when the user selects "No" in FIG. A third notification process is executed (S12). In the third notification process, the control unit 8 sets the content shown in FIG. 5(c), that is, the operation of cutting the roll paper Rp and notifying the removal of the cut roll paper Rp as the notification operation. 9 to execute. Cutting the roll paper Rp in the third notification process refers to user cutting in which the user himself/herself cuts the roll paper Rp.

Here, a procedure for user disconnection by the user will be described. First, as shown in FIG. 2, the cover 90 is moved from the closed position to the open position. Thereby, the path W is exposed to the outside. After that, the user cuts off the jammed roll paper Rp at an arbitrary position on the path W (the "exposed portion of the transport path" in the present invention). The arbitrary position here is a position where the leading end of the roll paper Rp that caused the jamming can be removed. refers to the part between Note that the relevant portion of the roll paper Rp may be cut by using a cutting tool such as scissors after the jammed roll paper Rp is pulled out of the path W of the transport path. You may cut|disconnect using a cutting tool, without drawing Rp outside. In short, the user can cut the jammed roll paper Rp at an arbitrary position on the path W. FIG. When the roll paper Rp is pulled out from the path W and then cut, the cut roll paper Rp is returned to the path W. When the roll paper Rp is cut without being pulled out from the path W, the cut portion (the leading end portion of the roll paper Rp) is removed from the path W. Then, the cover 90 is moved from the open position to the closed position.

Next, the control unit 8 determines whether or not the removed roll paper Rp has been removed (S13). If the user does not select "OK" in FIGS. 5B and 5C using the input unit 7 and does not input an instruction indicating that the removal of the roll paper Rp is completed (S13: NO ), and S13 are repeated to wait until removal of the cut roll paper Rp is completed. On the other hand, when the user selects "OK" in FIGS. 5B and 5C using the input unit 7 and inputs an instruction indicating that the removal of the roll paper Rp is completed (S13: YES). , to S14.

Next, the control section 8 starts reprinting in S14. That is, the control unit 8 causes the transport unit 3 to transport the roll paper Rp in the transport direction. Then, an image is formed by the head 5 a on the roll paper Rp transported by the transport unit 3 . After that, the process proceeds to S3. Thus, the above-described S3 to S5 are executed, and the flow ends.

As described above, according to the printer 100 of the present embodiment, when a jam has occurred in the transport path (S3: YES), the user performs the cover operation based on the third notification process in S12 via S6 to S9. 90 can be moved from the closed position to the open position to cut the roll paper Rp at any position on the exposed path W. Therefore, the roll paper Rp can be cut at a downstream position in the transport direction from the cutting position where the roll paper Rp is cut by the cutting unit 4 . As a result, it is possible to reduce the amount of discarded roll paper Rp even if a jam occurs during transportation.

Also, if a jam occurs in the transport path (S3: YES), the user can select whether or not to execute automatic cutting in S9 via S6 to S8.

Further, the control unit 8 can be set to the automatic disconnection mode when a signal instructing the setting of the automatic disconnection mode in which the automatic disconnection is always executed is input from the input unit 7 . This eliminates the need for the user to select automatic cutting every time a jam occurs. As a result, it is possible to save the user the trouble of cutting.

A cover 90 has a guide member 92 arranged adjacent to the transport roller pair 43 . Therefore, by moving the cover 90 from the closed position to the open position, it is possible for the user to cut the roll paper Rp caused by the transport jam in the vicinity of the transport roller pair 43 . Therefore, it is possible to effectively reduce the amount of discarded roll paper Rp.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. For example, in the above-described embodiment, the notification operation prompting the user to disconnect is performed in S12 via S6 to S9. may That is, S6 to S11 may be omitted. Alternatively, only one of S7 and S9 may be omitted. At this time, when S9 is omitted, S8 is also omitted. Also, the automatic disconnection mode may not be set.

The paper sensor 10 may be arranged in the path W described above. For example, when the paper sensor 10 is arranged between the curved path W1 and the head section 5, it is possible to detect a conveyance jam occurring in the curved path W1 and in the path between the curved path W1 and the cutting section 4. It is possible to cut the roll paper Rp along the path (exposed portion). Therefore, it is possible to obtain the same effect as the above-described embodiment.

In the above-described embodiment, the paper sensor 10, the cover 90, and the cutting section 4 are arranged upstream of the head section 5 in the transport direction. Furthermore, the paper sensor, the cover, and the cutting section may be arranged in order from downstream to upstream in the transport direction. In this case as well, it is possible to detect a transport jam that occurs in the transport path between the discharge tray 6 and the head unit 5, and the cutting of the roll paper Rp in this path (exposed part) downstream of the cutting unit in the transport direction is possible. It becomes possible. Therefore, it is possible to obtain the same effect as the above-described embodiment.

The cover 90 may not have the guide member 92 if the path W can be exposed to the outside by opening the cover body 91 . Further, in the above-described embodiment, the cutting section 4 has the fixed blade 4a, but instead of the fixed blade 4a, a rotary blade movable in the horizontal direction together with the rotary blade 4b may be provided. Note that the rotary blade may be a non-rotating blade.

The present invention is applicable not only to inkjet printers, but also to a laser image forming unit that forms an electrostatic latent image by exposing a photoconductor with a laser, and an electrostatic latent image that forms an electrostatic latent image by exposing a photoconductor with an LED. It can also be applied to an electrophotographic printer provided with an LED type image forming unit. Also, the sheet-like medium is not limited to paper, and may be cloth or the like as long as it is in the form of a sheet.

3 transporting unit 4 cutting unit 5 head unit (image forming unit)
7 Input unit 8 Control unit 9 Notification unit 10 Paper sensor (detection unit)
20 Roll body storage section (storage section)
100 printer (image forming device)
100a housing 101 apparatus main body R roll body Rp roll paper (sheet medium)
W path (exposed part of transport path)
W1 Curved path (exposed part of transport path)

Claims (4)

a storage unit that can store a roll body in which a sheet medium is wound in a roll;
an apparatus main body equipped with a conveying unit that conveys the sheet-like medium unwound from the roll body in the conveying direction and an image forming unit that forms an image on the sheet-like medium;
an electric cutting unit capable of cutting a sheet-like medium conveyed by the conveying unit in a direction crossing the conveying direction;
A closed position in which a conveying path for a sheet-like medium located downstream in the conveying direction from the cutting section is formed between the apparatus main body and at least a portion thereof separated from the apparatus main body so that the conveying path can be exposed to the outside. a cover that can assume an open position;
Detection for detecting a transport jam of a sheet-like medium transported to the transport path by the transport unit downstream in the transport direction from an exposed portion of the transport path exposed to the outside by the cover taking the open position. Department and
a notification unit capable of executing a notification operation to notify the user;
a control unit;
When the detection unit detects the jammed sheet medium, the control unit allows the user to cut the jammed sheet medium at an arbitrary position in the exposed portion of the conveying path. An image forming apparatus characterized by causing the notification unit to execute the notification operation including prompting. an input unit for the user to input a predetermined instruction,
When the detection unit detects the jammed sheet medium, the control unit automatically cuts the jammed sheet medium by the cutting unit before prompting the user to cut the medium. cause the notification unit to execute the notification operation for selecting whether or not;
cutting the sheet-like medium by the cutting unit when an instruction to execute the automatic cutting is input to the input unit;
2. The image forming apparatus according to claim 1, wherein when an instruction indicating not to execute the automatic disconnection is input to the input unit, the notification unit is caused to perform the notification operation to prompt the user to disconnect. When the detection unit detects the jam of the sheet medium when the input unit receives an instruction to always perform the automatic cutting when the jam occurs, the controller detects the jam. 3. The image forming apparatus according to claim 2, wherein the automatic disconnection is set to be executed at . The conveying unit has a conveying roller pair for conveying the sheet medium to the image forming unit,
4. The apparatus according to any one of claims 1 to 3, wherein the cover has a guide member that is arranged adjacent to the pair of conveying rollers and constitutes a part of the conveying path that guides the sheet-like medium to the pair of conveying rollers. The image forming apparatus according to any one of items 1 to 3.

Images